Once upon a time, two friends walked through the vast, golden desert under the scorching sun.

After a while, they had a disagreement, and one friend's hand met the other friend's cheek with a resounding 'clap.'

Though hurt, the friend who was slapped silently etched in the soft sand, 'Today my best friend slapped me in the face.'

They continued their journey until a miracle appeared before their eyes — an oasis shimmering in the distance.

Deciding to refresh themselves, they eagerly waded into the cool, inviting waters of the oasis.

Suddenly, one friend stumbled into the treacherous mire, sinking into the murky depths and struggling to stay afloat.

Reacting swiftly, the other friend bravely plunged in, pulling his struggling companion to safety.

Panting and relieved, the friend who was saved carved a message on a nearby stone, 'Today my best friend saved my life.'

Confused by the two very different responses, the friend who had slapped and saved his companion inquired about the contrasting actions.

With wisdom beyond his years, his companion explained, 'When someone hurts us, we should write it down in the sand, but when someone does something good for us, we must engrave it in stone.'